1-3 seconds of lag when entering and exiting PIE

Development Getting Started & Setup
, ,
1

I installed a vanilla version of Unreal 5.6 with the FPS template and I’m seeing a few issues:

  1. 1-3 seconds of lag when entering and exiting PIE
  2. AudioMixerPlatformInterface throws a warning every 5 seconds “unreal LogAudioMixer: Warning: AudioMixerPlatformInterface Timeout [ 5 Seconds] waiting”
  3. You can see polygons on the inside of the FPS characters head when looking downward.

Just looking to see if there are fixes for these issues, thanks.

  • Jeramy
2

Hi @00k ,
I did some research and noticed that when you create a new project in Unreal, the camera is placed quite far from the character. This happens because of the changes they made to the new First Person template in UE 5.6.

Here’s the official link with all the updates, in case you want to check it out:

https://dev.epicgames.com/documentation/en-us/unreal-engine/unreal-engine-5-6-release-notes#firstperson

To fix it, you can simply move the camera a bit closer. Go into BP_FirstPersonCharacter, select the camera component, and adjust its position closer to the character.
This is also due to the new first-person rendering system ,now the full body is rendered instead of just the arms like in previous versions. So when the camera is too far, you might see polygons .(That didn’t happen before because the character didn’t have a visible body in first person).
(UE 5.5)

image
image1458×903 127 KB

(UE 5.6)
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image1446×983 145 KB

As for the audio issue and the few seconds of delay when entering and exiting PIE, they might actually be related. Unreal’s audio system can cause problems if something’s off during initialization.

Here’s what might help:

  • Update your drivers.
  • Also, just in case (not sure if it applies to you), make sure you have an audio output device connected. I saw a few reports where people had similar issues just because no audio device was active.
    (In my case, I didn’t run into any audio issues or the 1–3 seconds of lag when entering or exiting PIE when creating a new project)

Hope this helps! Let me know if you need anything else.

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